Role of carnitine in disease Nutrition & Metabolism Springer Nature Link L Carnitine. Fat burning hero or just another hype supplement? If weight loss is your goal, L Carnitine might support your journey, but it's not a magic fix Here's what it actually does Supplements don't replace the workbut they can support it L Carnitine helps your body turn fat into usable energy, so you can push harder and recover better. Consistency first. Supplements second. Results Carnitine: Genetic Variants Affecting Mitochondrial Energy and Health Acetyl L Carnitine vs L Carnitine: 4 Key Differences Momentous